I was playing a murloc build with a 100/100 breamcounter in my hand. I picked up the trinket that would give these stats at the start of combat to the left most minion on my board. I thought it would be smart to have a corrupted myrmidon there so It would double, but here it goes wrong. Turn 1 it worked like a charm (I suspect because I was the first to start of our team.) But turn 2 it only worked on the myrmidon card itself because I started second in line. So instead of a 200/200 card I had a 8/8.
So this probably means that the greater trinket is broken if you start second in combat.